Muelles CROM calculates and designs all types of both round wire spring as rectangular and square sections with all materials. Both carbon steel and stainless and high performance materials as Hastelloy, Incoloy, Inconel all very difficult to treat because of their structural complexity and so adverse to the thermo-physical treatments reaction.

The trailer brake springs are of high responsibility and acting as security assistance for vehicle brake. They are usually of extension type and made of ​​Bezinal to avoid spring galvanizing baths and for prevent the occurrence of hydrogen in the core of the raw material.

The demanding high performance materials defeat in front of the most demanding materials, which are the most complicated technically. In addition if tungsten is a material considered a precious material and which is quoted in the stock metals exchange, we are facing a big deal for the industry that requires these kind of materials.